IWC IW9270-20

IW9270-20 : IWC Grande Complication 3770 Platinum / Black / English / Bracelet

Grande Complication 3770 Platinum / Black / English / Bracelet

Brand: IWC
Family: Grande Complication
Reference: IW9270-20
Name: Grande Complication 3770 Platinum / Black / English / Bracelet
Produced: 1993 - 2010
Limited: No

Case

Material: Platinum
Glass: Sapphire
Back: Closed
Shape: Round
Diameter: 42.20 mm
Height: 16.30 mm
W/R: 10.00 m

Dial

Color: Black
Indexes: Stick / Dot
Hands: Dauphine

Movement

The IWC Calibre 79091 has been developed in 1991 and made up from base: Valjoux 7750 plus additionally the in-house made IWC perpetual calendar module & the in-house made IWC minute-repetition mechanism
The movements are decorated, assembled and regulated in Schaffhausen.

Type:Automatic
Brand:IWC
Caliber:79091
Base: ETA 7750
Display:Analog
Jewels:75
Reserve:44 h
Frequency:28800 bph
Time:Hours, Minutes, Small Seconds
Date:Date, Day, Month, Perpetual Calendar, Year Indicator
Chronograph:Chronograph
Astronomical:Moonphase
Acoustic:Minute Repeater

Description

IWC introduced its first 'Grande Complication' wristwatch at the 1990 Basel watch fair. Building upon the platform that Kurt Klaus' perpetual calendar module had provided them, IWC went ahead and added a minute repeater to the already complex movement. The case measured 42.2mm across at a height of 16.3mm, making it of considerable size - especially at the time of introduction.

Reference IW9270-20 is part of the second generation of Grande Complication's, being distinguished by the updated dial design and 'dauphine' hands.